Bug 32402 - dwarf-reader,ir: Recognize new DWARF 5 languages

Bug 32402 - dwarf-reader,ir: Recognize new DWARF 5 languages

DWARF 5 introduced new language enumerators.  Libabigail needs to
recognize some of them, especially those related to C, C++, and Ada.
But while looking into it, I thought I'd made it recognize more than
just those languages, to prepare for the future.

	* configure.ac: Detect the presence of DW_LANG_* language
	enumerators that were not supported before and for new ones that
	got introduced in DWARF 5.
	* include/abg-ir.h (translation_unit::LANG_{C17, C23,
	C_plus_plus_17, C_plus_plus_20, C_plus_plus_23, OCaml, D, Go,
	Rust, Zig, Metal, Fortran18, Fortran23, Ada2005, Ada2012, Kotlin,
	C_sharp, Ruby, Assembly, Crystal, HIP, Mojo, GLSL, GLSL_ES, HLSL,
	OpenCL_CPP, CPP_for_OpenCL, SYCL, Odin, P4, Move, Hylo}): Add new
	languages enumerators.
	* src/abg-dwarf-reader.cc (dwarf_language_to_tu_language)
	(get_default_array_lower_bound): Recognize & support the new
	languages enumerators above.
	* src/abg-ir.cc (translation_unit_language_to_string): Likewise.
	(is_c_language): Recognize translation_unit::LANG_C{17,23}.
	(is_cplus_plus_language): Recognize
	translation_unit::LANG_C_plus_plus_{20,23}.
	(is_ada_language): Recognize
	translation_unit::LANG_Ada{95,2005,2012}.

Signed-off-by: Dodji Seketeli <dodji@redhat.com>